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Black Book Advanced Problems in MathematicsMathematicsFunctions

If | x + cosec x| = | x| + | cosec x| ; x [0, 2 ] , then complete set of values of x is :

Options

  1. A[0, ]
  2. B(0, 2 ]
  3. C(0, 2 ] [ 3 2 , 2 )
  4. D( , 3 2 ] [ 7 4 , 2 ]

Correct answer

C. (0, 2 ] [ 3 2 , 2 )

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